A washer or cone or disk shape with a centrally located hole, designed to accommodate a flat or oval head screw and provide additional bearing area on the material being fastened. It may or may not have a flush flange feature.
Classification: Washers other than lock washers, iron or steel
NSN 5855-00-055-1579
NSN 5915-01-068-0995
NSN 6145-01-142-5732
NSN 5910-01-571-8500
NSN 5950-01-426-5284
NSN 5920-00-653-0019
NSN 4140-00-552-7370
NSN 5895-00-936-3524
NSN 5975-01-415-0918
NSN 6650-01-437-6805
NSN 6620-01-213-8772
NSN 6685-01-134-2387